11-870 76.2 mm Dia. Germanium Protective Flat Window; t=5 mm BBAR 3-12µm

This 11-870 optical window, sourced from Edmund Optics, is a circular, flat window with a diameter of 76.2 mm and a thickness of 5 mm. It is made from Germanium burnett, a material known for its excellent transmission properties in the infrared region of the spectrum, making it ideal for applications in this wavelength range, specifically at 10600 nm.

The window features a BBAR (Broadband Anti-Reflection) coating on both the front and back surfaces, specifically the 'edm arcedgermanium31' coating. This coating is designed to reduce reflection and increase transmission across a broad spectrum, enhancing the performance of the window in a variety of applications.

The window is shaped as a thin lens, which is often used in optical systems to reduce weight and thickness while maintaining optical performance. This makes it a versatile and practical choice for many optical applications.

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